Answer:
-7 & 9
Step-by-step explanation:
(-7) + 9 = 2
(-7) - 9 = -16
x + y = 2
x - y = -16
Add the equations together to eliminate one of the variables.
2x = -14
Divide both sides by 2
x = -7
Let's plug -7 into x for our first equation.
-7 + y = 2
Add 7 to both sides.
y = 9
1. Find (4y - 5)(3) - 7).
I need two answers
-4c+25+c=3c+79
Answer:
c = -9
Step-by-step explanation:
- 4c + 25 + c = 3c + 79 Combine like terms.
- 4c + c + 25 = 3c + 79
- 3c + 25 = 3c + 79
- 3c + 3c + 25 = 3c + 3c + 79
25 = 6c + 79
25 - 79 = 6c + 79 - 79
- 54 = 6c
-54/6 = 6c/6
-54/6 = c
-9 = c
There aren't 2 answers, you could have 2 answers if one of the c's was squared. Here is another way to do the math.
- 4c + 25 + c = 3c + 79
- 4c + c + 25 = 3c + 79
- 3c + 25 = 3c + 79
- 3c - 3c + 25 = 3c - 3c + 79
- 6c + 25 = 79
- 6c + 25 - 25 = 79 - 25
- 6c = 54
- 6c/- 6 = 54/- 6
c = 54/- 6
c = - 9
Answer:
-9 = c
Step-by-step explanation:
-4c+25+c=3c+79
-3c +25 =3c+79
25 = 6c +79
-54=6c
-54/6 = c
-9 = c
I don't see how there is a 2nd answer.
2 of 5
The ratio of boys to girls in a class is 5:7. There are 36 students in the
class. How many students are boys?
Answer:
15
Step-by-step explanation:
The ratio has been simplified so it may be hard to read.
To fix this multiply both the 5 and 7 by 3
This will give you 15:21
15 + 21 = 36 which is the total number of students.
Keeping the ratio in the same order means that there are 15 boys.
Answer:
There are 15 boys in the class.
Step-by-step explanation:
There are several ways to solve this, but here's how I did it:
5 (boys) : 7 (girls) = 12 students. There are 26 students, so we need to multiply this by 3.
15 (boys) : 21 (girls) = 36 students.
he product of 3 and a number, divided by 9
Answer:
3x/9
Step-by-step explanation:
Answer:
The answer would be: 3x/9
Step-by-step explanation:
Three of the thirty computers are out of service. What percent of the computers are working?
Answer:
90% percent of the computers are working.
Step-by-step explanation:
3/30 of the computers don't work and we can simplify this
1/10 or 10% Subtract 10% from 100%
90% are working computers.
Help on this one. You will get 10 points
Answer:
A.true
Step-by-step explanation:
The domain of a quadratic function in standard form is always all real numbers, meaning you can substitute any real number for x. The range of a function is the set of all real values of y that you can get by plugging real numbers into x.
which of the following is an irrational number
a.18
b.2.66666666666666...
c.
[tex]\pi[/tex]
d.-16/3
Answer:
c. π
Step-by-step explanation:
Intgers, fractions, and repeating or finite-length decimals are all rational number.
Pi (π) is an irrational number.
9. What are the median, mode, and range of the data? The median is The mode is The range is
Answer:
median: the middle of all data in a least to greatest list
mode: the number that repeats the most
range: the sum of all the data
How can you use the distribute property to solve multi step equations
Tanisha made 6 cups in 3 days. If she worked the same pace, how many cups could she make in 5 days?
Answers please :) !!
Answer:
A and D are probably the answers
Step-by-step explanation:
Use long division to solve:
2 )3.8
x+5l=5
please help i really need it.
Answer:
x = - 46
Step-by-step explanation:
Step 1:
x = 5 - 51
Answer:
x = - 46
Hope This Helps :)
Answer: x= -46
Step-by-step explanation:
-46+51=5
Find the length of the missing side of the right triangle.
5 ft.
12 ft.
What’s x
raise b to the 6th power?
Answer:
b^6
Step-by-step explanation:
not quite understanding the question, but this is b to the 6th power
Please help fast will give brainliest
Answer:
[tex]\frac{24}{5}, \frac{63}{4}[/tex], 15.758, 956 [tex]\sqrt{e}[/tex]
What is the distance rounded to the nearest tenth, between the points (0, 5) and (8, 0)?
Answer:
Vvvgfffff
Step-by-step explanation:
Answer:
[tex]\huge\boxed{\sf 9.4 \ units}[/tex]
Step-by-step explanation:
Coordinates are (0,5) and (8,0)
[tex]\sf Distance\ Formula = \sqrt{(x2-x1)^2 + (y2-y1)^2} \\\\D = \sqrt{(8-0)^2 + (0-5)^2} \\\\D = \sqrt{8^2 + (-5)^2} \\\\D = \sqrt{64+25} \\\\D = \sqrt{89} \\\\D = 9.4\ units[/tex]
Indicate the method you would use to prove the two's 2. If no method applies, enter none.
A. HL
B. LA
C. LL
D. Ha
E. None
HA
None
Answer:
LA
Step-by-step explanation:
I need help on this fassssttt
Select the correct product. ( x2 + 6 x + 9)(3 x - 1) 3 x3 + 17 x2 + 21 x - 9 3 x3 - 17 x2 - 21 x - 9 3 x3 + 19 x2 + 27 x + 9 3 x3 + 19 x2 + 9 x - 9
Answer:
[tex] \boxed{ \bold{{ \boxed{ \sf{3 {x}^{3} + 17 {x}^{2} + 21x - 9}}}}}[/tex]
Option A is the correct option.
Step-by-step explanation:
[tex] \sf{( {x}^{2} + 6x + 9)(3x - 1)}[/tex]
Use distributive property
⇒[tex]{ \sf{ {x}^{2} (3x - 1) + 6x(3x - 1) + 9(3x - 1)}}[/tex]
⇒[tex] \sf{3 {x}^{3} - {x}^{2} + 18 {x}^{2} - 6x + 27x - 9}[/tex]
Collect like terms
⇒[tex] \sf{3 {x}^{3} + 17 {x}^{2} + 21x - 9}[/tex]
Hope I helped!
Best regards! :D
Answer:
3x^3 + 17x^2 + 21x - 9
Step-by-step explanation:
Use distributive property.
First distribute the 3x
3x times x^2 + 6x + 9. Distribute = 3x^3 + 18x^ 2 + 27x
Now we distribute the -1
-1 times x^2 + 6x + 9. Distribute = -x^2 -6x - 9
We Add both answers-
3x^3 + 18x^2 + 27x
+ -x^2 -6x - 9
__________________
3x^3 + 17x^2 + 21x - 9
9.Huge bought x notebooks. Write an expression to model the cost of the
notebooks Huge Bought
0 2.50x
O 25x
O 32x
Answer:
[tex]2.50x[/tex] ,or [tex] 2.5x [/tex]
Step-by-step explanation:
All of the expressions are right, but I doubt that there's a notebook that costs 25 dollars or 32 dollars.
A leg of a right triangle measures 12 cm. The hypotenuse of the triangle measures 37 cm. What is the measure, in centimeters of the other
leg of the triangle?
25
35
39
49
Answer:
The answer is 35Step-by-step explanation:
Since the triangle is a right angled triangle we can use Pythagoras theorem to find the missing side b
Using Pythagoras theorem we have
a² = b² + c²
where a is the hypotenuse
Substitute the values into the above formula and solve
That's
[tex] {37}^{2} = {b}^{2} + {12}^{2} \\ {b}^{2} = {37}^{2} - {12}^{2} \\ { b}^{2} = 1369 - 144 \\ {b}^{2} = 1225 \\ b = \sqrt{1225} [/tex]We have the final answer as
35Hope this helps you
Answer:
35
Step-by-step explanation:
To solve for the hypotenuse of a right triangle, we use the Pythagorean Theorem, which is an equation to solve for the length of the hypotenuse given the two sides. The equation is a^2+b^2=c^2, where A and B are the legs of the triangle, and C is the hypotenuse. Let's manipulate this equation now. We are given one leg and the hypotenuse length, so the equation would be 12^2+b^2=37^2. Since we are trying to find the length of one of the legs, you subtract 12^2 from 37^2 to isolate B, and you get B^2 as 1225. You take the square root of both sides, and then you get 35 as the answer.
Order the numbers from least to greatest. 7.6, 7 8/21, 7 4/5, 7 2/3, 7.71
Answer:
7 8/21, 7.6, 7 2/3, 7.71, 7 4/5
Step-by-step explanation:
none
Answer:
0.04, 0.2, 1/2, 3/4, 5, 73
Step-by-step explanation:
i'm not for sure.
find the area of the rectangle
Answer:
33xx-50x+8
Step-by-step explanation:
multiply 3x-4 by 11x-2
i need help with this math problem pls
Answer:
It should be the third bubble, because all integers are whole numbers
(01.02 MC)Which statement best explains the value of 16 − (−3)? HELP ASAP PLS WILL GIVE BRAINLIEST TO THE FIRST ANSWER!!! :)
Answer:
18
Step-by-step explanation:
Negative and negative will always be positive so that you need to add
Answer:
19
Step-by-step explanation:
You can just do 16+3
Tamika is buying a handbag that is on sale for 20% off the original price. She uses a coupon to get an additional 5%
off the discounted price. If the original price of the handbag is $48.00, what is the final sale price that Tamika will pay?
Any help would be appreciated!
Answer:
The answer would be 90
Step-by-step explanation:
do 5 percent of 48
owenn goes on a camping trip with his family cabin rentals are $430 for the week, kayak rentals are $7 per hour and paddle boards are $9 an hour, write an algebric expression to represent how much the family will spend if they stay for one week and plan on renting both kayaks and paddle boards while on their tripoi
Answer:
430 + 16h
Step-by-step explanation:
They are staying for a week ($430)
They are renting both a kayak ($7 per hour) and paddle board ($9 per hour), without defining the amount of hours. Create a variable, for example H for hours.
To create the expression, take the $430, the $7 per hour and $9 per hour, or 430 + 16h.
A small town in Iowa started with a population of 2300 people 80 years ago. Now, the town has experienced significant growth and has a population of about 3234956 people. Approximately how many times larger is the current population in the Iowa town than it was 80 years ago?
Aproximadamente de 1406.502 veces para q de esta respuesta 2300 lo dividí por la actuales y las multiplique para ver si estaba bien la división
Espero ábrete ayudado!!
Given Domain values of 09,-6,-3,0,1.5 and 3, find the corresponding range for the piecewise function below.
Answer:
Domain and range » Tips for entering queries. Enter your queries using plain English. To avoid ambiguous queries, make sure to use parentheses where necessary. Here are some examples illustrating how to ask for the domain and range. domain of log(x) (x^2+1)/(x^2-1) domain; find the domain of 1/(e^(1/x)-1) function domain: square root of cos(x)
Step-by-step explanation: